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path: root/drivers/pci/pcie_layerscape.c
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* pcie/layerscape: fix bug in bus number computation when setting msi-mapBogdan Purcareata2016-06-03-3/+6
| | | | | | | | | | | | | | | When multiple PCI cards are present in an ls2080a board, the second card does not get its msi-map set up properly due to a bug in computing the bus number. The bus number returned by PCI_BDF() is not the actual PCI bus number, but instead represents a global u-boot PCI bus number. A given bus number is relative to hose->first_busno, so that has to be subtracted from the PCI device id. Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com> Acked-by: Stuart Yoder <stuart.yoder@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
* pci/layerscape: set LUT and msi-map for discovered PCI devicesStuart Yoder2016-03-21-0/+147
| | | | | | | | | | | | | | | | | | msi-map properties are used to tell an OS how PCI requester IDs are mapped to ARM SMMU stream IDs. for all PCI devices discovered in a system: -allocate a LUT (look-up-table) entry in that PCI controller -allocate a stream ID for the device -program and enable a LUT entry (maps PCI requester id to stream ID) -set the msi-map property on the controller reflecting the LUT mapping basic bus scanning loop/logic was taken from drivers/pci/pci.c pci_hose_scan_bus(). Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
* armv8: ls2080a: remove obsolete stream ID partitioning supportStuart Yoder2016-03-21-70/+0
| | | | | | | | | | Remove stream ID partitioning support that has been made obsolete by upstream device tree bindings that specify how representing how PCI requester IDs are mapped to MSI specifiers and SMMU stream IDs. Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
* pci: layerscape: Adjust the return value when ls_pcie_addr_valid() failsBin Meng2016-01-08-1/+1
| | | | | | | | | When trying to access non-existent/unsupported PCI devices in ls_pcie_read_config(), when ls_pcie_addr_valid() fails it returns error code and fills in the result with 0xffffffff manually. But it really should return zero to upper layer codes. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* pci/layerscape: add support for LS1043A PCIe LUT register accessMingkai Hu2015-11-30-7/+7
| | | | | | | | | | | The endian and base address of PEX LUT register region is different between Chassis 2 and Chassis 3, so move the base address definition to chassis specific header file and add pex_lut_* functions to access LUT register. Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com> Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* armv8: ls2085a: Add support of LS2085A SoCPrabhakar Kushwaha2015-11-30-1/+1
| | | | | | | | | | | | | Freescale's LS2085A is a another personality of LS2080A SoC with support of AIOP and DP-DDR. This Patch adds support of LS2085A Personality. Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> [York Sun: Updated MAINTAINERS files Dropped #ifdef in cpu.h Add CONFIG_SYS_NS16550=y in defconfig] Reviewed-by: York Sun <yorksun@freescale.com>
* armv8: LS2080A: Rename LS2085A to reflect LS2080APrabhakar Kushwaha2015-11-30-1/+1
| | | | | | | | | | | LS2080A is a prime personality of Freescale’s LS2085A. It is a non-AIOP personality without support of DP-DDR, L2 switch, 1588, PCIe endpoint etc. So renaming existing LS2085A code base to reflect LS2080A (Prime personality) Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> [York Sun: Dropped #ifdef in cpu.c for cpu_type_list] Reviewed-by: York Sun <yorksun@freescale.com>
* armv8/fsl_lsch3: Change arch to fsl-layerscapeMingkai Hu2015-10-29-1/+3
| | | | | | | | | | | | | There are two LS series processors are built on ARMv8 Layersacpe architecture currently, LS2085A and LS1043A. They are based on ARMv8 core although use different chassis, so create fsl-layerscape to refactor the common code for the LS series processors which also paves the way for adding LS1043A platform. Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com> Signed-off-by: Hou Zhiqiang <B48286@freescale.com> Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* pci/layerscape: Setup mmu-masters property for the PCIeVarun Sethi2015-09-01-0/+9
| | | | | | | | | Setup mmu-masters property for the PCIe controllers. This would be used by the Linux SMMU driver, while setting up stream ID table mappings for the PCIe devices. Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* drivers/pci/layerscape: Add EP mode supportMinghuan Lian2015-08-03-2/+135
| | | | | | | | | | | | | | | | The patch will initialize PCIe controller on EP mode 1. Setup bar: bar0 32bit 4K for specific configuration bar1 32bit 8K for MSIX bar2 64bit 4K for descriptor of memory bar4 64bit 1M for DMA memory test 2. Setup iATU: iATU inbound 0-3 to map bar transaction to memory address started at CONFIG_SYS_PCI_EP_MEMORY_BASE iATU outbound 0 to map 4G memory space Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* armv8/fsl-lsch3: device tree fixups for PCI stream IDsStuart Yoder2015-07-20-0/+62
| | | | | | | | | | | This patch adds the infrastructure to update device tree nodes to convey SMMU stream IDs in the device tree. Fixups are implemented for PCI controllers initially. Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* pci/layerscape: fix link and class issues to support ls2085aMinghuan Lian2015-04-21-14/+33
| | | | | | | | | | | | | | 1. LS2085a provides PCIE_LUT_DBG register rather than PCIE_LDBG to show the link status, so the patch fixes it. 2. Increase the delay time to make sure that link training has finished. 3. Return invalid value when accessing multi-function device 4. For LS2085a DBI_RO_WR_EN bit is cleared as default, so we must set this bit before change DBI register value. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* pci/layerscape: remove unnecessary pcie_layerscape.hMinghuan Lian2015-04-21-3/+2
| | | | | | | | | | The patch uses the common function name ft_pci_setup to replace ft_pcie_setup, then removes unnecessary pcie_layerscape.h because all the functions have been declared in common.h. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: York Sun <yorksun@freescale.com>
* driver/pci: add Layerscape PCIe driverMinghuan Lian2015-02-24-5/+466
| | | | | | | | The patch adds Freescale Layerscape PCIe driver and provides up to 4 controllers support. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* arm: ls102xa: Update PCIe dts node statusMinghuan Lian2014-12-11-0/+51
The patch changes PCIe dts node status to 'disabled' if the corresponding controller is disabled according to serdes protocol. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>